GCC Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 7.2.1

BIOS Version: bios_6_76_01_06_eng_k3

XDCTools Version: xdctools_3_55_01_15_core_eng

Benchmark	Cycles
Interrupt Latency	474
Hwi_restore()	35
Hwi_disable()	16
Hwi dispatcher prolog	547
Hwi dispatcher epilog	247
Hwi dispatcher	790
Hardware Interrupt to Blocked Task	1050
Hardware Interrupt to Software Interrupt	835
Swi_enable()	130
Swi_disable()	33
Post Software Interrupt Again	67
Post Software Interrupt without Context Switch	167
Post Software Interrupt with Context Switch	221
Create a New Task without Context Switch	2770
Set a Task Priority without a Context Switch	174
Task_yield()	346
Post Semaphore No Waiting Task	146
Post Semaphore No Task Switch	307
Post Semaphore with Task Switch	406
Pend on Semaphore No Context Switch	81
Pend on Semaphore with Task Switch	372
Clock_getTicks()	41
POSIX Create a New Task without Context Switch	4908
POSIX Set a Task Priority without a Context Switch	165
POSIX Post Semaphore No Waiting Task	152
POSIX Post Semaphore No Task Switch	298
POSIX Post Semaphore with Task Switch	408
POSIX Pend on Semaphore No Context Switch	110
POSIX Pend on Semaphore with Task Switch	393

The benchmark application was built using BIOS.LibType_Custom with the following compiler options:

“-mcpu=cortex-a8 -mfpu=neon -mfloat-abi=hard -mabi=aapcs -O3 -Wunused -Wunknown-pragmas -ffunction-sections -fdata-sections -g -Dti_sysbios_Build_useHwiMacros -Dfar= -D__DYNAMIC_REENT__”.

Timings were obtained with the cache enabled.

See the SYS/BIOS User’s Guide for more information regarding how interrupt latency is calculated.